Bucket mechanism.



G. A. PRAYER.

BUCKET MECHANISM.

APPLICATION FILED JAN.20, 1910.

1,032,358. Patnted July 9, 1912.

2 SHEETS-SHEET 1. Q

F I GQI C. A. PRAYER.

BUCKET MECHANISM.

APPLICATION FILED JAN. 20, 1910.

Patented July 9, 1912.

2 SHEETSSHEET 2.

UNITED STATES 'PATENT OFFICE.

CHARLES A; FRAYEIL OF TOLEDO, OHIO, ASSIGNOB, BY MESNE ASSIGNMENTS, TOTHE ZBUCYRUS' COMPANY, 015' SOUTH MILWAUKEE, WISCONSIN, A. CORPORATIONOF WIS- CONSIN.

sooner Mncnamsu.

Specification of Letters Patent.

Patented July9, 1912.

Application filed January 20, 1910.. Serial No. 539,049.

side elevation, with parts broken away,

showing an embodiment of the invention as adapted for use in connectionwith a swinging boom crane; 'Fig. 2v is a longitudinal medial section,on an enlarged scale showing the devices. of the invention as adapted tothe drag line bucket operation; and Fig. 3

is a plan view. of the bucket, with partsbroken away.

The rotatable platform .1

to the bucket 7 The hoisting line 5 engages the suspension arm 8pivotally mounted on the bucket 7 within the width of the bucket.

The suspension arm 8 has mounted therein roller carrying pin 9 movableinto the notch 4 in slot. 14 of the reciprocable tripping ele-- ment ortrigger 15 of the holding device.

This element 15 is guided by the sleeve l6 in its reciprocations toforce the pin 9 out of the notch 10, and may not move to a verticalposition owing to pin 12 over which it rides and as to which it is heldby sleeve 16.

The sleeve 16 is pivotally mounted by the pin 13 ,in the forks of theholding device or book 11 carried by the pin 12.

Pivotally connected to the forward end of the bucket 7 is the drawmember 17 hav-' ing the'way 18 in which isreciproca-ble the block 19,about which block 19 the drag line 6 extends before being connected tothedraw member 17. Connected to the block 19 is the pair of flexibleconnections 20 extending through guides 21 on the bucket 7 to the eyes22 on the armsections 8, to limit the oscillation of the bucket.Tovlimit the has mounted thereon the prime mover 2 and the boom 3. Theangle of the boom 3 may be adjusted by the line 4, while the hoisting orsuspension 1 line 5 and the drag or haul line 6 extendpension armsections 8. This line 24 also limits the swingof the bucket relativelyto the draw member and suspending arm. The bucket 7 is shown in thisinstance as provided with a pivoted back, to aid in the dumpingoperation. To supplement the free ng of material tending to adhere tothe bucket back, the showing embodies the back frame 26 having anopenwork back therein comprising chain links 27, which in the bandlingof the bucket will vibrate and thus shake material free therefrom. As anextension from this screen back, is shown the hinged member 28, whichhas a scooping action in the dumping operation. The pivoted back isshown as directly connected to the suspension arms 8 to be movabletherewith. The bucket bottom is provided with longitudinally extendingguiding and scoring vanes 29, efiective not only to keep the bucketlined up for proper travel in the digging operations, but also servingto loosen up the material, thereby aiding subsequent filling "'of thebucket. Topermit adjustment of the forward limit of travel of the block19, openings 30 are provided in the member 17, in which openings pin 31may be inserted.

In operation, the platform 1 is swung so that the boom 3 hangs over ortoward the material to be moved, and the hoist line 5 is so paid outthat the bucket 7 may properly land in position thereon as guided by thedrag line 6. The scoring vanes 29 engaging in the loose material, tendto keep the bucket 7 from working out of line of the haul cable 6 duringthe filling of the bucket. With tension upon the haul line 6, block 19is drawn to its forward limit of travel along the way 18, which causesthe drag member 17 to be inclined downwardly due to the connections 20.This deflection of the member 17 .is adjustable'by'the pin 31 varyingthe forward limit of travel of the block 19. By this adjustment theangle of travel of the bucket into the material may be regulated,

the draw member having a sort of plow beam action. In this travel theback of the lines in Fig. 2. When the bucket 7 is filled,

it is lifted by the hoisting line 5, draw line 6 being paid outsufliciently to control the position of the bucket, while the platform 1is 5 swung to bring the boom 3 into position over the dumping place-forthe material. With the bucket 7 hus suspended for dumping, the draw line6 is slacked, which permits the heavy outer end of the draw member 17 toswing downward, as shown in dotted lines in Fig. 2, which travel of thismember 17 in the path of element brings about a contact by member17 withthe lower end of this element 15, which concussion ushes 15elcment 1.5from the full line ositlon, to the dotted line position shown in ig. 2,thus effecting movement of this element 15 into the notch 10 to forcepin 9 out of this notch, thereby tripping the bucket 7, permitting 20the released forward end of the bucket to swing downward as shown 'infull lines in Fig. 2. In this swinging operation, the line 24 pulls thedraw member up so that it may not interfere with the free fall ofmaterial 25 being discharged from the bucket. The slacking of line '6permits the block 19 to travel toward the inner end of the way 18 asguide 21 pulls the connections 20 to the limit of the bucketoscillation. Simultaneously with this inclining of the bucket, theback-26, due to its connection with arm 8, swings forward relatively tothe bucket,

with its extension 28 scooping the material I out of the bucket 7. Themore or less viof this dumping operation shakes the cham links 27 tofree any ma-; terial tendin to stick thereto. Tendency toi lenceattendin clog the buc et is therefore avoided, while the advantages ofdraining are assured. As

40 member 17 was swung upward in the dumping operation, the element 15moved back to leave the notch 10 clear. After dumping, the slack in line6 is taken up, drawing may be 'had as the bucket is being for landing ordumping.

What is claimed and it is desired to secure I by Letters Patent is:

1. A bucket, a trip connected to the bucket, a hoisting member for thebucket and detachably connected to the trip to hold the bucket inmaterial retaining position, a

drag line, a connectin beam between the drag line and the buc et, andconnecting means to the trip engaging the beam be- .tween the bucket anddrag line and efl'ective by slacking of the drag-line to detach 0 thetrip from holding the bucket in material retaining posit-ion.

. 2. A bucket, a suspending arm therefor, a return line' for the bucketconnected to the suspending arm, a, trip mounted on the 5 bucket andhavi a trigger, said trip detachably connecte to the arm to hold the armfrom movement relatively to the bucket, and in addition to the suspendinarm a drag line to the bucket and provi ed with 0 means movable uponslacking of the drag line to move the trigger to disconnect the arm fromthe trip to permit free swinging of the return'line held arm as to thebucket at different positions of the bucket. 5

3. A bucket, a disconnecting trip for the bucket, a hoisting memberengaged by the trip, a draw member mounted on the bucket and movablerelatively to the bucket to actuate the'trip, and a drag line connectedto the member and effective by slacking to cause the draw member toactuate the trip t disconnect the hoisting member for free swingingrelatively to the bucket.

4. A bucket, a drag line for the bucket to actuate the bucket in onedirection, a return line for the bucket to actuate the bucket in thereverse direction, in addition to said lines a suspending arm pivoted tothe bucket and coacting with one of the lines, and a trip carried by thebucket and provided with a trigger to hold the arm, said drag linerovided with means movable upon slacking of the drag line to reciprocatesaid trigger to release the trip from the arm to thereby free the arm.

5. A bucket, a draw member and. a susi pending arm each-pivotally andseparately block 19 forward, causing line 20 to lift the f 45'forwardend of the bucket, with line 24f drawing the arm 8' so that pin 9 willride; against the. pivoted holding device 11 to; engage the notch10,'when the refilling ofi the bucket for continued operation may; 50occur. This resetting of the releasable trip returned for 'load.. Thedevice is accordingly sus-; ceptible of rapid operation from the regulardrag and hoist lines without the introduction of any complications tohamperi simple and eflicient handling. The drag. and hoist lines mayeven be manipulated for swinging the bucket beyond the boom end;

connected to the bucket, and. a trigger trip connected to hold thebucket as to thesus- 11o pending arm, said trigger disconnected byrocking of the draw member as to the bucket ,to free the arm and thuspermit swinging of the bucket relatively to the arm.

6. A bucket, a draw member and a suspending arm each pivotally andseparately connected to the bucket, a holding device for the armembodying a draw member actuated element, and a drag line to the memberoperable on slacking to permit falling of the draw member as to thebucket and thus move the element and disconnect it from the arm to'allowthe bucket to dump.

7. A bucket, a draw member, a suspending arm and a holding device forthe arm comprising a rigid element pivotally connected directly tothebucket, said member movable to coaet with the element to disconnectthe device from the arm.

8. A bucket, a suspension arm pivoted to 139 the bucket, a draw memberpivoted to the bucket, holding means between the arm and bucketreleasable to permit swinging of the bucket relatively to the arm, andconnecting means between the arm and member coacting to limit therelative swing of the bucket,

4 said member movable to disconnect the holding means from the arm.

9. A bucket, a draw member pivotally connected to the bucket, saidmember hav ing a reciprocable block, an actuating line for the bucketextending about the block to the member, and flexible connecting meansfrom the block to the bucket.

10. A bucket, a draw member pivotally connected to the bucket, saidmember having a way, a block reciprocable along said way, and adjustingmeans to limit the travel of the block in the way, an actuating line forthe bucket extending about the block to the member, and connecting meansfrom the block to the bucket.

11. A bucket, drag and return lines therefor, a draw member, connectionbetween the bucket and draw member, a trip for dumping the bucket, andadditional connection between the member and bucket movable by slackingthe drag line/to maintain the member in position to permit freedischarge of material from the bucket in the dumping operation. A

12. A drag bucket, a draw member, pivotal connection between the memberand bucket, a trip for dumping the bucket, and additional connectionsbetween the member and bucket to swing the member into position topermit free discharge of material from the bucket in the dumpingoperation.

13. A drag bucket, drag and hoist lines therefor, a draw member for thebucket to which the drag line is connected, a sus ension arm pivoted tothe bucket and to w ich the hoist line is connected, a holding devicefor the arm detachable from the arm by rocking of the memberthereagainst to permit dumping of the bucket, and connections from thearm to the member to maintain the member in position to permit freedischarge of material from'the bucket in the dumping operation.

14. Abucket, drag and hoist lines therefor, a holding device detachablyconnected between the hoist line and the bucket and provided with meansacted upon by slacking of the drag'line to release the holding device topermit swinging of the bucket as to the hoist line, and sett-in meansconnected between the drag and holst lines for reconnecting the devicebetween the hoist line and bucket.

15. A bucket, a holding device for maintaining the bucket in materialretaining position, a drag line connected to the bucket, a memberconnected to the device, operable by slacking the drag line to releasethe device from holding the bucket, and setting means for the deviceconnected to the drag line and operable by taking up the drag line slackto reset the holding device to lock the bucket in material retainingposition.

16. The combination with a bucket having a hoisting line, of a drag lineto the bucket, anda drag line controlled disconnecting trip connectedto.the bucket and hoisting line, and provided with' a trigger acted uponby slacking the drag line to disconnect the trip and free the bucket forswinging relatively to the hoisting line.

17 The combination with a bucket having a hoisting line, of a drag lineto the bucket, a drag line controlled disconnecting trip connected tothe bucket and hoisting line and provided with a trigger acted upon byslacking the drag line to disconnect the trip and free the bucket forswinging relatively to the hoisting line, and a reset means for the tripconnected between the drag and hoisting lines and operable by taking upthe slack in the drag line to brin the trip into position for holdingthe buc et as to the hoisting line.

18. A bucket having an inwardly swingable pivoted back, a hoistin memberto which said back is connecte and a trip carried by the bucket torelease the bucket relatively to said hoisting member to thereby aid inexpelling materialfrom the bucket as the bucket swings relatively to thehoisting member.

19.- A bucket embodying a tubular body portion having front and rearends, a pivoted back adjacent the rear end and swingable to open bytravel toward the front end, and an extension section hinged to saidback.

'20. A bucket havin a pivoted back, a trip for releasing said is. havingconnection to the bucket and additional connection to control the trip.

21. A bucket having a forward end, a suspending arm and back connectedto the bucket, a holding device for maintaining the forward end of thebucket in material retaining position, and releasing means for thedevice to permit lowering of the forward end of the bucket and movementof the back theretoward.

In testimony whereof I aflix my signature Witnesses:

GEO. E. KIRK, GLADYS JAMESON.

ck, and a drag line

